CVE-2026-98475Medium· 5.1▾ SunlitA flaw was found in the Linux kernel's s390 Channel Measurement Facility (CMF). This vulnerability can allow a local user to cause memory corruption or a Denial of Service (DoS) due to confusion between virtual and physical memory addresse…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 28.1 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
Last analysed / modified upstream
0.2%
— → 5.1
none → medium
A flaw was found in the Linux kernel's s390 Channel Measurement Facility (CMF). This vulnerability can allow a local user to cause memory corruption or a Denial of Service (DoS) due to confusion between virtual and physical memory addresses. When extended format channel measurement data is recorded on systems using randomized memory configurations, the kernel fails to properly translate the target memory address before providing it to the system firmware. Consequently, the firmware writes measurement data into unintended physical memory locations, which can destabilize the system or result in a crash.
kernel: s390/cmf: Fix virtual vs physical address confusion — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-20.
Affected:
No fix planned:
Not affected:
Fix deferred
Workarounds / mitigations:
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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